An automotive battery is a type of rechargeable battery that supplies electric energy to an automobile. Usually this refers to an SLI battery (starting, lighting, ignition) to power the starter motor, the lights, and the ignition system of a vehicle’s engine.

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Are there any modern diesel engines the require electricity to continue running?

I was reading this question about an owner checking the alternator by disconnecting the battery, which is an easy way to validate on a gasoline engine. The single answer assumes that the OP is ...
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110 views

Car Battery Dying Overnight - Disconnected

I have been having trouble starting my car (needed to jump it twice, once in the morning, and once in the afternoon). Sometimes it would make a clicking noise when trying to start or it would be ...
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Battery running flat on a regular basis

I drive a Vauxhall/Opel Astra Mk5 1.8l SRi, registered in 2004. For 2/3 months now I've been having to keep a spare battery in the car as the car battery is running flat. My first thought was that ...
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1k views

My battery was too low, and now my check engine light is on

I've noticed it in the last year (2013) that my 2008 Jetta with the original OEM battery would be taking a little longer to start than before, sometimes (but very rarely) not starting in the amount of ...
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389 views

Cola vs Baking soda vs Water to clean battery, and what should be used afterwards?

This questions is to extent the following question Should I use coca cola or baking soda + water to clean my battery clamps?. I have heard of using both Coke and baking soda to clean battery clamps ...
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Battery dies frequently

I've had my 97 civic for a year now and the battery died about 3 months after I bought the car. Each time it died, I'd kick start it, drive for a few days, then it would die again. So I went to the ...
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106 views

89 jeep cherokee will run but when i turn it off and try to restart it the battery is dead

The battery is still good and the motor will keep running when you disconnect a terminal. Can my alternator be bad? If not I'm also thinking a dead short? What is the best way to find out?
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79 views

Battery won't hold a charge. 2001 Ford Mustang

2001 Ford Mustang V6. Bought brand new battery in Nov 2013. I tested the core of the alternator at the same time as buying the battery and it tested good. I also switched out a relay in the engine to ...
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140 views

Battery voltage slightly low. Especially when the car's been sitting for a while

My car is a 2004 Mazda 3. This happened with the last battery I had as well as this newer one. Basically if I leave the car sitting for 2-3 days without driving it, it doesn't have the voltage to ...
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1answer
124 views

2005 BMW X3 Cranks won't run

2005 BMW X3 won't start after extremely cold weather. I replaced the battery and tried starting with spare key. The engine turns over but still won't start. It was running fine before cold weather. ...
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1answer
1k views

Using a car with an inaccessible negative battery terminal to jump start

When trying to jump start my Volvo XC-60, I came across a very unexpected problem. I tried to use our 2nd vehicle, a 2010 Ford Escape, as the assisting car to jump start mine. But when I looked at ...
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How can I test a car battery [duplicate]

I have a 2010 Volvo XC-60 that I purchased used about a year ago. Given the vehicle had extremely low mileage when I purchased it and was only 3 years old, I imagine that the car still has its ...
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879 views

Battery light comes on after starting the car. How big of a problem is this?

On my way to work this morning, the battery light came on. I would say it was about 2-3 minutes after I started the car. My drive to work is only a 10 minutes drive, and the light was on the whole ...
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2answers
464 views

2005 Mercury Montego securilock appears stuck

I've got a 2005 Mercury Montego that wont turn over. You would think the thing is complete dead, lights don't turn on, power locks don't work, but the battery is full. What does happen though is a ...
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211 views

Do I need to replace a battery that failed once but now seems to be testing successfully?

The winter temperatures were very low overnight in the area recently, with a low of -8°F/-22°C. When I went to start my 2007 Toyota Prius that was outside that night, it wouldn't start on its own. I ...
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4answers
130 views

Is a bad battery bad for other components too?

I think my battery is on the way out - on cold mornings, it turns the engine over very slowly to start with, and takes a number of turns before the engine finally starts. This has been the case for a ...
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836 views

Could less than optimal battery charge prevent starter bendix drive from engaging flywheel?

With a less than optimal 12.2 volts at the battery terminals and the bendix drive at the starter failing to pop and engage the flywheel, would battery charge be a likely cause of such a failure? Or ...
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194 views

My 2000 Chevy impala won't start

At first when I tried to start it the lights came on and the check engine light came on but no start. Now I get no reaction at all. Need help
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2k views

My car won't start. Is it that I ran it without coolant or is it my battery?

Sunday I didn't use my car. At 9pm I moved it across the street because the street sweeper was passing on Monday. Monday morning at 8:30am my car doesn't start. I remembered that I haven't checked ...
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1answer
174 views

Battery dies over weekend

This is about my Nissan Altima 2.5S. I drive it to work and drive back to home every weekday. My workplace is 10 miles from my home and it's about 20 minutes' ride single trip. Other than that the car ...
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2answers
48 views

2007 MKZ Engine Won't Turn

The engine turn has been "weak" the last week or so. This morning it was kinda cold and it wouldn't turn at all; I'd hear a slight buzzing sound and the dash lights would kind of flicker when the ...
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1answer
216 views

2002 Altima: Battery and Gas Pedal Issues Same Week

Car Info: 2002 Nissan Altima 2.5L with about 140k miles on it. The symptoms: On Tuesday of this week the car is in a parking lot, we return to the car, it starts and idles but when the accelerator ...
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325 views

Can an improper jump start cause damage to the starter motor?

Can a charger pack applied to the wrong terminals cause damage to a starter motor on a car. This was done resulting in a loud bang, flash and smoke inside the vehicle. What other damage could have ...
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32 views

Can I plug dj gear to Pilot 2013?

The touring pilot 2013 can provide 650 watts, and has a 115V outlet. But can it handle a good 2-3 hours of djing or would it kill the battery? All together the dj gear may consume up to 150 watts
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Where is the battery located on a Chevrolet Cobalt and how do you change it?

I'm trying to get a 2006 Cobalt back on the road. It's presenting the symptoms of run down battery (Dim lights, time on the radio is reset to 12:00, won't start). The battery is original, so it's ...
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114 views

2006 Mustang GT: Left car for 1 week, no power when returning

I went on vacation for a week. The car was working fine before I left. I came back and there is no power. Can't turn on headlights or unlock/lock with remote, and the car gives a clicking sound when ...
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221 views

Is there a risk of a spark igniting hydrogen when removing or installing a battery?

Guides to jumping a car with a dead battery commonly advise that the cable from the negative terminal of the good battery be connected to the chassis of the stalled car rather than to the negative ...
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176 views

Intermittent no crank issues

My girlfriend has 2003 VW Beetle (2.0L, 5-speed manual). Sometimes, when you turn the key to crank over the car it tries to turn over but then hits a wall. No clicking happens at all. It starts to ...
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138 views

Battery has a draw with key off

I have a 2000 Grand Cherokee, and I’m having 2.23 Amp draw off the battery when the key is off. Leave the door open 2‒10 min., and the battery is dead or not strong enough to start the vehicle. I go ...
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50 views

Battery does not work after servicing?

The battery of the vehicle which is working fine before servicing at an authorized dealer, suddenly stops working a day after bringing the vehicle back from the service center. I've faced a problem ...
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1answer
793 views

Car keys off but fuse still lights up the tester when set to ground

So normally when you want to test your fuses, you set the car to on and put the tester clip to ground then put the tester's lead on the fuse. if it lights up then the fuse is working. Well, even when ...
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2005 Chevy Cobalt won't start, sounds like a machine gun

I haven't driven my car in about a week, and when I went to try and start it today, it would not start. It has enough battery to play the radio and whatnot, so I'm not sure if it's a battery related ...
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Adding a additional battery to car

I have purchased a brand new Toyota Innova. I need to install a a mac mini, 2 laptops and make this car a mobile office. I need to know if I can install another car battery in parallel, and will ...
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Why did my car stall when I used the foot brake?

Preface: I drive a 2004 Peugeot 206, manual On the motorway the other night, one of my tires blew out. I managed to pull over and change to the spare wheel in about 30 minutes (having never changed a ...
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865 views

WagonR refuses to start sometimes

My Suzuki WagonR (2008) is about four years old now. The problem is that my car refuses to start sometimes. I doubt my battery is the problem and the history of my battery is that I have not changed ...
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5k views

Factory panic alarm going off after changing battery [97 Toyota Camry]

We just changed the battery in our 1997 Toyota Camry now as soon as we connect the battery the panic alarm goes off and all the doors lock. How do we stop this / turn it off. ///note: the battery in ...
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267 views

'03 Mazda Tribute needs jumped every time it starts

I have a 2003 Mazda Tribute. I'm not entirely sure what the problem is with the vehicle. I suppose it could be the alternator or just a dead battery, but could also be something more detailed. I have ...
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2k views

Electrical problems due using battery charger as a jump starter

I have a 2003 honda civic, and the car battery went dead on me. I didn't have a jumper cable with me, but I had a car battery charger. So, I hooked it up to the battery and tried starting the car. ...
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06 Ford Escape Dead Battery Keypad Entry

So, the Escape was sitting in the parking garage for a couple weeks with the keys inside and no spare available (don't ask, this is a shared company vehicle with keypad entry). The keypad isn't ...
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350 views

93 Nissan Sentra SE-R, replaced alternator voltage still low

My car died while I was driving it, but I can put the battery on a charger (or from another car, with jumper cables) and get it running albeit for a short period of time. I put a multimeter on the ...
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168 views

Increase your Prius battery capacity?

There's a lot of info about Prius battery upgrades hidden in web forums, but I would like to bring some of that to SE. What are some of the easiest ways to hook up aftermarket batteries to your ...
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2answers
361 views

Charging battery on BMW 320ci 2003

I left my BMW unused for 6 weeks. Then I started the engine for 10 seconds and turned it off. A few days later I started the engine and drove it 10 metres and turned it off. Then I attempted to start ...
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309 views

dead battery 350z limited possiblities still eluding what is it?

So one night i parked my car and the next morning it was dead. It cranked like a half then 1/4 then nothing barely enough for lights on dash. I boosted it and it fired right up ran fine. Turned it ...
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633 views

Should I turn off my headlights while having the car run to “defrost” while I scratch ice off the windows?

My 2009 Ford Mondeo Clipper has a very nice "Max Heating" setting, where it both defrosts front and back windows, and sets the airco to max temperature, max fan speed. When I find my car windows ...
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2k views

How to put 1997 Toyota 4Runner in neutral with dead battery?

My ’97 Toyota 4Runner with automatic transmission is parked head first in a small garage with a dead battery. I need to put it into neutral to push it out on the driveway so I can jump-start it. (This ...
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What is the correct/factory wiring for a Suburban 1998 battery/alternator?

I have included a picture showing what I have now on this Suburban. Note that there is wiring not shown in the picture which is a second electrical connection to the positive side of the battery ...
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710 views

Dashboard lights are dim?

We own a 2011 Mitsubishi Montero Sport GTV. We noticed that the dashboard lights were dimmer than normal. What could possibly cause this? Would replacing the battery fix this?
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How to detect a failing car alternator..?

Is there some way we can predict that the car alternator is about to fail in order to avoid a discharged battery situation on the road.. Although it will slow the sound of horn and will dim the ...
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165 views

Wet battery durability based on how we start a motorbike engine

I have a motorbike with a wet battery. I use its electric starter to start the engine. Is there any research done by others before to prove which one of the following makes the durability of the wet ...
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159 views

08 Prius, New battery. Still dead

Prius, 08, smart key. Dead on Sunday am --- nothing works. Put trickle on the underhood postive and neg to body bolt. Got enough juice to open rear hatch (and dome light comes on ) Replaced with ...